Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

Apparently, the style needs to be agreed upon first.

llvm-svn: 240390
diff --git a/llvm/lib/Transforms/Utils/SymbolRewriter.cpp b/llvm/lib/Transforms/Utils/SymbolRewriter.cpp
index 4cc278f..a2a54da 100644
--- a/llvm/lib/Transforms/Utils/SymbolRewriter.cpp
+++ b/llvm/lib/Transforms/Utils/SymbolRewriter.cpp
@@ -538,7 +538,7 @@
   for (const auto &MapFile : MapFiles)
     parser.parse(MapFile, &Descriptors);
 }
-} // namespace
+}
 
 INITIALIZE_PASS(RewriteSymbols, "rewrite-symbols", "Rewrite Symbols", false,
                 false)